Senior Java Engineer: Scale FinTech APIs (Amsterdam)

Adyen; Amsterdam; Hybrid; EUR 90,000 - 130,000; Full time

Job summary

Adyen is a leading fintech platform enabling payments, data, and financial products for global customers. We are seeking a Senior Software Engineer (Java) to join the Financial Products team in Amsterdam.

You will work on complex, high-scale projects, contribute code, and drive robust, scalable solutions that merchants rely on daily. You will collaborate across product, data science, frontend, and other engineering teams to ship fast while maintaining quality.

Qualifications

• 8+ years of experience in software development in a fast-paced tech environment.
• Proficient in Java and REST APIs.
• Experience with large-scale distributed systems.
• Strong understanding of software engineering practices.
• Full professional proficiency in English.

Responsibilities

• Work on complex technical projects from requirements analysis through design, implementation, testing and launch into production.
• Be hands-on and contribute to the implementation.
• Identify and improve parts of the platform to make it more robust and scalable.
• Bring your own point of view on best engineering practices.
• Code will be used at scale; think scale-first when building features.
• Launch fast and iterate; deploy live functionalities affecting merchants and shoppers.
• Build APIs and tooling with quality, performance, and maintainability in mind.
• Collaborate across teams and time zones to finish projects.

Skills

Java

Web Services

REST APIs

Webhooks

SQL/PostgreSQL

English (professional)

Large-scale distributed systems

Team collaboration

Tools

PostgreSQL

Job description

Adyen is a leading fintech platform enabling payments, data, and financial products for global customers. We are seeking a Senior Software Engineer (Java) to join the Financial Products team in Amsterdam.

You will work on complex, high-scale projects, contribute code, and drive robust, scalable solutions that merchants rely on daily. You will collaborate across product, data science, frontend, and other engineering teams to ship fast while maintaining quality.